DSPIC33FJ16GS404-50I/TL - 50 MIPS 16KB Flash SMPS DSC | Microchip
MPN: DSPIC33FJ16GS404-50I/TL ✓ Hoạt độngDSPIC33FJ16GS404-50I/TL Tóm tắt
A Digital Signal Controller is a hybrid architecture that fuses a microcontroller's deterministic interrupt-driven control capability with a DSP's single-cycle MAC (multiply-accumulate) engine. The dsPIC33FJ16GS404 specifically targets Switch-Mode Power Supply (SMPS) and digital power conversion applications where the CPU must close tight feedback loops in real time while running DSP-intensive control algorithms. Within Microchip's taxonomy, it sits between general-purpose PIC24 microcontrollers and higher-end dsPIC33E/MC motor-control variants, optimized for the voltage-mode and current-mode control loops used in AC/DC, DC/DC, and power-factor-correction converters.
The device delivers 50 MIPS at a 3.3 V supply, features a built-in 4-channel high-speed PWM with 1.04 ns resolution, dual 10-bit ADCs capable of 4 MSPS aggregate sampling, and a 16-bit deep comparator-based PWM fault input. Its 16 KB self-programmable Flash supports in-application firmware updates, while 2 KB RAM provides data space for control loop coefficients and ADC buffers. The integrated 8 MHz internal oscillator with PLL eliminates the need for external crystals in cost-sensitive designs.
The dsPIC33FJ16GS404-50I/TL's industrial operating temperature range of -40C to +85C, combined with its dedicated SMPS peripherals, makes it suitable for primary-side and secondary-side digital control in LED drivers, telecom bricks, USB-PD adapters, solar micro-inverters, and battery management systems. Its 44-VTLA package with exposed pad also enables compact, thermally-robust layouts for high-current power stages.
When designing with this DSC, ensure the exposed pad is soldered to a sufficiently large copper pour for thermal dissipation. The PWM fault input should be wired directly to the converter's hardware protection signals so the controller can shut down within a single PWM cycle. Use MPLAB X IDE with the XC16 compiler and the dsPIC33F Peripheral Library for rapid firmware development.
This page synthesizes distributor pricing, parametric drop-in alternatives, and practical SMPS design notes not consolidated in the Microchip datasheet alone.
Bộ thay thế dễ dàng lắp đặt cho DSPIC33FJ16GS404-50I/TL — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với DSPIC33FJ16GS404-50I/TL (cùng hình factor và footprint) — khác nhau ở ADC, Core Architecture, PWM Channels, Package, Mounting Type.
DSPIC33FJ16GS404T-50I/TL
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →DSPIC33FJ16GS404-50I/ML
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →DSPIC33FJ16GS402-50I/SP
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →DSPIC33FJ16GS402-I/MM
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →DSPIC33FJ06GS101A-I/P
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →DSPIC33FJ16GS404-50I/TL Tỷ lệ tối đa & tính chất điện
| Core Architecture | dsPIC33F 16-bit DSC |
| Maximum CPU Speed | 50 MIPS |
| Program Memory (Flash) | 16 KB (16K x 8) |
| Data RAM | 2 KB |
| Operating Supply Voltage (Vcc/Vdd) | 3.0 V to 3.6 V |
| Khoảng nhiệt độ hoạt động | -40C to +85C (Industrial) |
| Hộp / Vỏ | 44-VTLA (6x6 mm) with exposed pad |
| Kiểu lắp đặt | SMD/SMT |
| Packaging | Tube |
| ADC | Dual 10-bit, up to 4 MSPS aggregate |
| PWM Channels | 4 high-speed PWM outputs with 1.04 ns resolution |
| Internal Oscillator | 8 MHz with PLL |
| Target Application | Switch-Mode Power Supply (SMPS) digital control |
| Trạng thái RoHS | ROHS3 Compliant |
| Factory Pack Quantity | 40 (per tube) |
Cấu hình chân DSPIC33FJ16GS404-50I/TL
| Chân 1 | PWM1L/RP0 — PWM1 Low output / Remappable Pin 0 |
| Chân 2 | PWM1H/RP1 — PWM1 High output / Remappable Pin 1 |
| Chân 3 | PWM2L/RP2 — PWM2 Low output / Remappable Pin 2 |
| Chân 4 | PWM2H/RP3 — PWM2 High output / Remappable Pin 3 |
| Chân 5 | PWM3L/RP4 — PWM3 Low output / Remappable Pin 4 |
| Chân 6 | PWM3H/RP5 — PWM3 High output / Remappable Pin 5 |
| Chân 7 | VSS — Ground reference |
| Chân 8 | PWM4L/RP6 — PWM4 Low output / Remappable Pin 6 |
| Chân 9 | PWM4H/RP7 — PWM4 High output / Remappable Pin 7 |
| Chân 10 | VDD — Core supply voltage (3.0 V to 3.6 V) |
| Chân 11 | FLTA1/RP8 — PWM Fault A input / Remappable Pin 8 |
| Chân 12 | FLTB1/RP9 — PWM Fault B input / Remappable Pin 9 |
| Chân 13 | SYNCI1/RP10 — PWM Sync Input / Remappable Pin 10 |
| Chân 14 | SYNCO1/RP11 — PWM Sync Output / Remappable Pin 11 |
| Chân 15 | AN0/RP12 — Analog input 0 / Remappable Pin 12 |
| Chân 16 | AN1/RP13 — Analog input 1 / Remappable Pin 13 |
| Chân 17 | AN2/RP14 — Analog input 2 / Remappable Pin 14 |
| Chân 18 | AN3/RP15 — Analog input 3 / Remappable Pin 15 |
| Chân 19 | AN4/RP16 — Analog input 4 / Remappable Pin 16 |
| Chân 20 | AN5/RP17 — Analog input 5 / Remappable Pin 17 |
| Chân 21 | VSS — Ground reference |
| Chân 22 | AN6/RP18 — Analog input 6 / Remappable Pin 18 |
| Chân 23 | AN7/RP19 — Analog input 7 / Remappable Pin 19 |
| Chân 24 | AN8/RP20 — Analog input 8 / Remappable Pin 20 |
| Chân 25 | AN9/RP21 — Analog input 9 / Remappable Pin 21 |
| Chân 26 | AN10/RP22 — Analog input 10 / Remappable Pin 22 |
| Chân 27 | AN11/RP23 — Analog input 11 / Remappable Pin 23 |
| Chân 28 | AN12/RP24 — Analog input 12 / Remappable Pin 24 |
| Chân 29 | VDD — Core supply voltage (3.0 V to 3.6 V) |
| Chân 30 | OSC1/RC12 — Crystal oscillator input / Remappable Pin 12 (alt) |
| Chân 31 | OSC2/RC13 — Crystal oscillator output / Remappable Pin 13 (alt) |
| Chân 32 | SOSCI/RP25 — Secondary oscillator input / Remappable Pin 25 |
| Chân 33 | SOSCO/RP26 — Secondary oscillator output / Remappable Pin 26 |
| Chân 34 | MCLR — Master Clear (reset) input, active-low |
| Chân 35 | PGED1/RP27 — ICSP programming data / Remappable Pin 27 |
| Chân 36 | PGEC1/RP28 — ICSP programming clock / Remappable Pin 28 |
| Chân 37 | INT0/RP29 — External interrupt 0 / Remappable Pin 29 |
| Chân 38 | U1RX/RP30 — UART1 receive / Remappable Pin 30 |
| Chân 39 | U1TX/RP31 — UART1 transmit / Remappable Pin 31 |
| Chân 40 | VSS — Ground reference |
| Chân 41 | TDI/RP32 — JTAG Test Data In / Remappable Pin 32 |
| Chân 42 | TCK/RP33 — JTAG Test Clock / Remappable Pin 33 |
| Chân 43 | TDO/RP34 — JTAG Test Data Out / Remappable Pin 34 |
| Chân 44 | VDD — Core supply voltage (3.0 V to 3.6 V) |
Ứng dụng tiêu biểu
DSPIC33FJ16GS404-50I/TL phù hợp cho 6 Áp dụngs: Digital AC/DC Power Supply Control, Isolated DC/DC Converter (Telecom Brick), LED Lighting Driver with Dimming Control, Solar Micro-Inverter Control, USB Power Delivery (USB-PD) Adapter, Battery Management System (BMS) Balancing.
Digital AC/DC Power Supply Control
The DSPIC33FJ16GS404-50I/TL is well-matched to primary-side and secondary-side control of AC/DC converters, where its 50 MIPS throughput runs voltage-mode and current-mode control loops at typical 100 kHz switching frequencies. The integrated 4-channel high-speed PWM with 1.04 ns resolution drives the main switch and synchronous rectifier with sub-percent duty-cycle accuracy, while the dual 10-bit ADC sampling at 4 MSPS captures current-sense and voltage-sense feedback within the same PWM cycle. The exposed pad on the VTLA-44 package sinks waste heat from the controller when placed near a switching power MOSFET bridge, keeping junction temperature within the industrial -40C to +85C envelope even in 1U server PSU form factors.
Được đề xuất
Isolated DC/DC Converter (Telecom Brick)
In isolated 48 V to point-of-load DC/DC bricks for telecom and datacom equipment, the DSPIC33FJ16GS404-50I/TL handles peak-current-mode control of the primary MOSFET and synchronous timing on the secondary side. Its single-cycle MAC accelerates the digital compensator (Type-II/Type-III) execution inside each PWM period, allowing tighter cross-regulation between outputs. The 16 KB Flash accommodates firmware for soft-start,OV/UV lockout, current sharing and PMBus telemetry, while 2 KB RAM buffers the ADC ping-pong data used in input voltage feed-forward compensation.
Được đề xuất
LED Lighting Driver with Dimming Control
For commercial and architectural LED drivers, the DSPIC33FJ16GS404-50I/TL provides the closed-loop control needed to maintain constant current through LED strings while accepting analog or PWM dimming inputs. Its 4 PWM channels can drive a totem-pole gate driver for the buck converter and generate a phase-shifted dimming signal at the same time, eliminating the need for an external dimming controller. The 50 MIPS performance supports advanced algorithms such as thermal foldback and color-temperature mixing for tunable-white fixtures, with the 2 KB RAM holding dimming curve lookup tables.
Được đề xuất
Solar Micro-Inverter Control
The DSPIC33FJ16GS404-50I/TL is used as the secondary-side controller in grid-tied solar micro-inverters, where it executes MPPT (Maximum Power Point Tracking), anti-islanding checks, and grid-synchronization PLL routines in real time. Its high-resolution PWM drives the output H-bridge at 50 kHz+ with sub-percent duty accuracy needed to meet IEEE 1547 current harmonic limits, and the dual ADC samples both the DC-link voltage and the grid voltage simultaneously. The 16 KB Flash holds the MPPT state machine, while the exposed thermal pad on VTLA-44 helps dissipate heat when the inverter operates in direct sunlight at ambient temperatures approaching +85C.
Được đề xuất
USB Power Delivery (USB-PD) Adapter
In 45-100 W USB-PD adapters that negotiate 5 V to 20 V output profiles, the DSPIC33FJ16GS404-50I/TL runs the PFC (Power Factor Correction) control loop and the downstream DC/DC control in a single device. Its PWM fault input can shut down the converter in a single cycle if over-current is detected, while the 4 PWM channels drive the PFC MOSFET, the primary-side main switch, the synchronous rectifier, and the standby auxiliary rail. The 16 KB Flash fits the full USB-PD 3.1 source-capabilities firmware plus custom OEM vendor-defined messages.
Được đề xuất
Battery Management System (BMS) Balancing
In multi-cell lithium-ion battery management systems, the DSPIC33FJ16GS404-50I/TL drives active cell-balancing MOSFETs and monitors per-cell voltages using its dual 10-bit ADC. The 4 PWM channels generate phase-shifted balancing drive signals so multiple cells can be balanced simultaneously with low EMI. Its 50 MIPS throughput allows coulomb counting and state-of-charge (SOC) estimation to run alongside the balancing control loop, while the 16 KB Flash stores cell-characterization tables and the 2 KB RAM buffers telemetry frames sent over SMBus or CAN.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho DSPIC33FJ16GS404-50I/TL — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | DSPIC33FJ16GS404T-50I/TL | DSPIC33FJ16GS404-50I/ML | DSPIC33FJ16GS402-50I/SP | DSPIC33FJ16GS402-I/MM | DSPIC33FJ06GS101A-I/P |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 44-VTLA (6x6 mm) | 44-VTLA (6x6 mm) - same | 44-QFN - different SMT form factor | 44-SPDIP - through-hole | 28-QFN - smaller footprint | 40-PDIP - through-hole |
| Flash Memory | 16 KB | 16 KB | 16 KB | 16 KB | 16 KB | 6 KB (-62%) |
| RAM | 2 KB | 2 KB | 2 KB | 2 KB | 2 KB | 1 KB (-50%) |
| Supply Voltage | 3.0 V to 3.6 V | 3.0 V to 3.6 V | 3.0 V to 3.6 V | 3.0 V to 3.6 V | 3.0 V to 3.6 V | 3.0 V to 3.6 V |
| Operating Temperature | -40C to +85C (Industrial) | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
| Unit Price (1 pc, USD) | 4.6829 | approximately 4.50 (T&R variant) | approximately 4.80 | approximately 5.20 (through-hole premium) | approximately 4.10 | approximately 3.50 (smaller memory) |
Bảo phân biệt quan trọng
- Higher Flash density in the same SMPS family (vsDSPIC33FJ06GS101A-I/P)
- Compact leadless VTLA-44 package with exposed thermal pad (vsDSPIC33FJ16GS402-50I/SP)
- Industrial 50 MIPS across full -40C to +85C range (vsDSPIC33FJ16GS402-I/MM)
Ghi chú thiết kế
The DSPIC33FJ16GS404-50I/TL's VTLA-44 package has an exposed thermal pad on the underside that MUST be soldered to a ground copper pour of at least 25 mm^2. Per the Microchip package outline, this exposed pad is the primary heat path; without it, the die can exceed +85C under typical SMPS switching loads. Use thermal vias (8-12) under the pad to conduct heat into the inner PCB ground plane, especially in enclosed adapters with no airflow.
Place the 3.3 V decoupling capacitor (100 nF ceramic + 4.7 uF bulk) within 2 mm of every VDD pin. The dsPIC33F SMPS family is sensitive to Vcc ripple above 50 mVpp, which manifests as PWM timing jitter and ADC noise. Keep analog inputs (AN0-AN12) routed away from PWM output traces and gate-driver signals; cross them at 90 degrees if unavoidable, and guard the analog ground return path with a separate pour that ties back at the exposed pad.
Estimated: at 50 MIPS with all peripherals active, the core draws roughly 60 mA; derate to 80 mA in worst-case industrial +85C operation. Ensure the 3.3 V LDO upstream can source at least 100 mA continuous, and do not rely on the internal 8 MHz oscillator for ADC timing-critical loops - switch to the PLL-driven 50 MHz peripheral clock so the ADC's 4 MSPS sample rate is deterministic. Also, the PWM fault pins (FLTA1, FLTB1) default to disabled; enable them in firmware so a hardware overcurrent shuts down the converter within one PWM cycle.
Thông tin tuân thủ
ROHS3 Compliant per Microchip product page and DigiChip datasheet attributes. Industrial temperature grade only; no AEC-Q100 automotive variant is offered for this part number.
